Feature:1. Ergonomic Design: This trailer plug and socket has the ergonomic design, which is easy to plug the trailer wiring and lights. It has a handle shaped body for a solid grip when plugging in or unplugging trailer wiring.2. Hidden Terminals: This trailer socket has hidden terminal blocks. This helps protect the splicing points of the wires from dust, rain, and other threats.3. Protective Function: Provide additional protection with spring cover and high dust resistance to avoid damage to the external environment when the adapter is not in use.4. Wide Application: This set can be used to connect tail lights, brake lights, reverse lights, turn signals, trailer brakes and auxiliary power.5. Easy to Install: This trailer plug and socket set is easy and convenient for you to install and remove, which has no complicated operation.Specification:Item Type: Trailer Plug and Socket.Material: MetalStandard: 7 PinConnection Definition:1 Pin: Yellow wire turn left2 Pin: black wire reverse headlights3 Pin: White wire bottom line4 Pin: Green wire turn right5 Pin: Blue wire Service brake6 Pin: Red wire Brake light7 Pin: Brown wire taillight, measuring mark lightApplication:Suitable for RV, caravan, trailerPackage List:1 xTrailer Plug1 x Trailer Socket